Shopping cart (#19)

* feat: navbar and main components added

* feat: add shopping cart

* added cart and store components

* basic functionality complete

* fix: effect

* adding more logic and components

* basic features

* reorg tree and add summary

* feat: new stuff

* styling: more stuff

* changes

* as good as itll get

* added public

---------

Co-authored-by: mike <mike@windows>

shopping-cart/src/App.jsx

@@ -0,0 +1,17 @@
+import { useState } from "react";
+import { Outlet } from "react-router-dom";
+import "./css/App.css";
+import Navbar from "./components/navbar";
+
+function App() {
+  const [cart, setCart] = useState({});
+  const [items, setItems] = useState(null);
+  return (
+    <>
+      <Navbar cartItems={cart} />
+      <Outlet context={[cart, setCart, items, setItems]} />
+    </>
+  );
+}
+
+export default App;

shopping-cart/src/Cart.jsx

@@ -0,0 +1,181 @@
+import Button from "./components/button";
+import PropTypes from "prop-types";
+import styles from "./css/cart.module.css";
+import { useOutletContext } from "react-router-dom";
+import { currencyFormat } from "./utils/currency";
+
+const Cart = () => {
+  const [cart, setCart] = useOutletContext();
+
+  const cartKeys = Object.keys(cart);
+
+  return (
+    <div>
+      <div className={styles.container}>
+        <Bag cartKeys={cartKeys} cart={cart} setCart={setCart} />
+        <OrderSummary cart={cart} />
+      </div>
+    </div>
+  );
+};
+
+function Bag({ cartKeys, cart, setCart }) {
+  return (
+    <>
+      {cartKeys.length > 0 ? (
+        <div className={styles.fullwidth}>
+          <div className={styles.cartItems}>
+            {cartKeys.map((key, index) => (
+              <CartItem
+                item={cart[key]}
+                cart={cart}
+                setCart={setCart}
+                key={index}
+              />
+            ))}
+          </div>
+        </div>
+      ) : (
+        <div className={styles["empty-cart"]}>
+          <h2>Your cart is empty</h2>
+        </div>
+      )}
+    </>
+  );
+}
+
+function OrderSummary({ cart }) {
+  const cartItems = Object.keys(cart);
+  const shippingFee = 0.1;
+  let numItems = 0;
+  let subTotal = 0;
+
+  cartItems.forEach((item) => {
+    subTotal += Number(cart[item].price) * Number(cart[item].qty);
+    numItems += Number(cart[item].qty);
+  });
+
+  const shippingCosts = shippingFee * subTotal;
+  const total = shippingCosts + subTotal;
+
+  return (
+    <div className={styles.summary}>
+      <h2>Order Summary</h2>
+      <p>
+        Subtotal ({numItems} items): ${currencyFormat(subTotal)}
+      </p>
+      <p>Shipping (10%): ${currencyFormat(shippingCosts)}</p>
+      <p>Total: ${currencyFormat(total)}</p>
+      <Button
+        text={"Checkout"}
+        onClick={() => alert("Congrats! You would've leveled up")}
+      />
+    </div>
+  );
+}
+
+function CartItem({ item, cart, setCart }) {
+  const { title, price, image, qty } = item;
+
+  return (
+    <div className={styles.cartItem}>
+      <img id={styles.img} src={image} alt={title} />
+      <div className={styles.card}>
+        <div>
+          <h3>{title}</h3>
+          <div className={styles["price-qty"]}>
+            <p> ${currencyFormat(price)} x </p>
+            <div className={styles.qtybtn}>
+              <button onClick={() => decreaseQty(item, cart, setCart)}>
+                -
+              </button>
+              <QuantityInput item={item} cart={cart} setCart={setCart} />
+              <button onClick={() => increaseQty(item, cart, setCart)}>
+                +
+              </button>
+            </div>
+            <p>Item total: ${currencyFormat(qty * price)} </p>
+          </div>
+        </div>
+        <div>
+          <Button
+            onClick={() => removeFromCart(item, cart, setCart)}
+            text={"Remove From Cart"}
+          />
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function QuantityInput({ item, cart, setCart }) {
+  function handleChange(e) {
+    const newQty = Number(e.target.value);
+    let obj = { ...cart };
+    if (newQty !== 0) {
+      obj[item.id].qty = newQty;
+    } else {
+      obj[item.id].qty = 1;
+    }
+    setCart(obj);
+  }
+
+  return (
+    <input
+      value={item.qty}
+      onChange={handleChange}
+      min="1"
+      max="999"
+      type="number"
+      className={styles.input}
+    />
+  );
+}
+
+function increaseQty(item, cart, setCart) {
+  if (cart[item.id]) {
+    let obj = { ...cart };
+    obj[item.id].qty += 1;
+    setCart(obj);
+  }
+}
+
+function decreaseQty(item, cart, setCart) {
+  if (cart[item.id]) {
+    let obj = { ...cart };
+    if (obj[item.id].qty > 1) obj[item.id].qty -= 1;
+    setCart(obj);
+  }
+}
+
+function removeFromCart(item, cart, setCart) {
+  if (cart[item.id]) {
+    let obj = { ...cart };
+    delete obj[item.id];
+    setCart(obj);
+  }
+}
+
+CartItem.propTypes = {
+  item: PropTypes.object,
+  cart: PropTypes.object,
+  setCart: PropTypes.func,
+};
+
+Bag.propTypes = {
+  cartKeys: PropTypes.array,
+  cart: PropTypes.object,
+  setCart: PropTypes.func,
+};
+
+OrderSummary.propTypes = {
+  cart: PropTypes.object,
+};
+
+QuantityInput.propTypes = {
+  item: PropTypes.object,
+  cart: PropTypes.object,
+  setCart: PropTypes.func,
+};
+
+export default Cart;

shopping-cart/src/Store.jsx

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+import { useEffect, useState } from "react";
+import ProductCollection from "./components/productCollection";
+import { useOutletContext } from "react-router-dom";
+
+export default function Store() {
+  const [cart, setCart, items, setItems] = useOutletContext();
+  const [loading, setLoading] = useState(true);
+
+  useFakeStoreAPIData(items, setItems, loading, setLoading);
+
+  return (
+    <div>
+      <ProductCollection
+        loading={loading}
+        items={items}
+        cart={cart}
+        setCart={setCart}
+      />
+    </div>
+  );
+}
+
+function useFakeStoreAPIData(items, setItems, loading, setLoading) {
+  useEffect(() => {
+    if (items !== null) {
+      setLoading(false);
+      return;
+    }
+
+    fetch("https://fakestoreapi.com/products/category/electronics", {
+      mode: "cors",
+    })
+      .then((response) => {
+        if (response.status >= 400) {
+          throw new Error("unable to fetch items");
+        }
+        return response.json();
+      })
+      .then((response) => {
+        const arr = [];
+        response.forEach((item) => {
+          arr.push({
+            title: item.title,
+            price: item.price * 100,
+            image: item.image,
+            id: crypto.randomUUID(),
+          });
+        });
+        setItems(arr);
+      })
+      .catch((error) => console.log(error))
+      .finally(() => setLoading(false));
+  }, [items, setItems, loading, setLoading]);
+}

shopping-cart/src/assets/react.svg

@@ -0,0 +1 @@
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shopping-cart/src/components/button.jsx

@@ -0,0 +1,19 @@
+import PropTypes from "prop-types";
+import styles from "./button.module.css";
+
+export default function Button(props) {
+  return (
+    <button
+      onClick={props.onClick}
+      className={props.styles ? styles[props.styles] : styles["btn"]}
+    >
+      {props.text}
+    </button>
+  );
+}
+
+Button.propTypes = {
+  onClick: PropTypes.func,
+  text: PropTypes.string,
+  styles: PropTypes.string,
+};

shopping-cart/src/components/button.module.css

@@ -0,0 +1,12 @@
+.btn {
+  padding: 1rem;
+  margin: 1rem;
+  font-size: 1rem;
+  border-radius: 0.5rem;
+  border: none;
+  cursor: pointer;
+}
+
+.action {
+  color: red;
+}

shopping-cart/src/components/main.jsx

@@ -0,0 +1,33 @@
+import Button from "./button";
+import { Link } from "react-router-dom";
+import styles from "./main.module.css";
+
+export default function Main() {
+  return (
+    <main>
+      <Default />
+    </main>
+  );
+}
+
+function Default() {
+  return (
+    <>
+      <div className={styles.container}>
+        <h1 className={styles.mainHeading}>
+          Our products help <span className={styles["heading-color"]}>you</span>{" "}
+        </h1>
+        <p className={styles["sub-heading"]}>
+          Keep engineers happy using working technology. Fast results and
+          guaranteed value from day one.
+        </p>
+        <Link to="/store">
+          <Button text={"Start shopping now!"} />
+        </Link>
+        <div>
+          <img src="/hero.jpg" alt="" className={styles["hero-img"]} />
+        </div>
+      </div>
+    </>
+  );
+}

shopping-cart/src/components/main.module.css

@@ -0,0 +1,33 @@
+main {
+  padding: 0 1rem;
+}
+
+.container {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  height: 100vh;
+}
+
+.mainHeading {
+  font-size: 4rem;
+  margin: 0;
+}
+
+.sub-heading {
+  font-size: 1.5rem;
+}
+
+.heading-color {
+  color: #0e6c96;
+}
+
+.hero-img {
+  margin-top: 100px;
+  width: 100%;
+  max-height: 800px;
+  vertical-align: middle;
+  object-fit: contain;
+  float: left;
+}

shopping-cart/src/components/navbar.jsx

@@ -0,0 +1,50 @@
+import styles from "./navbar.module.css";
+import { Link } from "react-router-dom";
+import PropTypes from "prop-types";
+import ShoppingCartIcon from "@mui/icons-material/ShoppingCart";
+
+export default function Navbar({ cartItems }) {
+  const sumCartItems = Object.keys(cartItems).length;
+
+  return (
+    <nav className={styles.container}>
+      <h1 className={styles["nav-heading"]}>Hobby Tech</h1>
+      <Nav sumCartItems={sumCartItems} />
+    </nav>
+  );
+}
+
+function Nav({ sumCartItems }) {
+  return (
+    <ul className={styles.nav}>
+      <li>
+        <Link to="/" className={styles.link}>
+          home
+        </Link>
+      </li>
+      <li>
+        <Link to="store" className={styles.link}>
+          shop
+        </Link>
+      </li>
+      <Link to="bag" className={styles.link}>
+        {sumCartItems > 0 ? (
+          <div className={styles["cart-icon-container"]}>
+            <div className={styles["cart-icon-circle"]}></div>
+            <ShoppingCartIcon fontSize="large" />
+          </div>
+        ) : (
+          <ShoppingCartIcon fontSize="large" />
+        )}
+      </Link>
+    </ul>
+  );
+}
+
+Navbar.propTypes = {
+  cartItems: PropTypes.object,
+};
+
+Nav.propTypes = {
+  sumCartItems: PropTypes.number,
+};

shopping-cart/src/components/navbar.module.css

@@ -0,0 +1,42 @@
+.container {
+  display: flex;
+  justify-content: space-between;
+  padding: 0 1rem;
+  /*position: relative;*/
+}
+
+.nav {
+  display: flex;
+  list-style-type: none;
+  gap: 20px;
+  /*position: absolute;*/
+  /*right: 4vw;*/
+  padding-right: 1rem;
+  margin-left: auto;
+  align-self: center;
+}
+
+.link {
+  text-decoration: none;
+  font-size: 1.5rem;
+  color: #0e374e;
+}
+
+.nav-heading {
+  color: #0e374e;
+}
+
+.cart-icon-container {
+  position: relative;
+}
+
+.cart-icon-circle {
+  background: #85d5f4;
+  border-radius: 50%;
+  height: 20px;
+  width: 20px;
+  position: absolute;
+  top: 7px;
+  left: 10px;
+  opacity: 60%;
+}

shopping-cart/src/components/productCollection.jsx

@@ -0,0 +1,31 @@
+import { Link } from "react-router-dom";
+import Products from "./products";
+import PropTypes from "prop-types";
+import styles from "./productCollection.module.css";
+
+export default function ProductCollection({ loading, items, cart, setCart }) {
+  return (
+    <div className={styles.container}>
+      {!loading
+        ? items.map((item, index) => {
+            return (
+              <div key={index} className={styles.card}>
+                <Products item={item} cart={cart} setCart={setCart} />
+                <Link to={item.id} className={styles.link}>
+                  {" "}
+                  More Info
+                </Link>
+              </div>
+            );
+          })
+        : null}
+    </div>
+  );
+}
+
+ProductCollection.propTypes = {
+  loading: PropTypes.bool,
+  items: PropTypes.array,
+  cart: PropTypes.object,
+  setCart: PropTypes.func,
+};

shopping-cart/src/components/productCollection.module.css

@@ -0,0 +1,29 @@
+.container {
+  display: flex;
+  gap: 2rem;
+  justify-content: center;
+  flex-wrap: wrap;
+  align-items: stretch;
+}
+.card {
+  display: flex;
+  flex-direction: column;
+  max-width: 350px;
+  justify-content: end;
+  padding: 1.5rem;
+  margin: 1.5rem;
+  background: #e2f3fc;
+  border-radius: 1rem;
+  text-align: center;
+}
+
+.link {
+  text-decoration: none;
+  color: #0e374e;
+  font-weight: 600;
+  transition: font-weight 500ms;
+}
+
+.link:hover {
+  font-weight: 900;
+}

shopping-cart/src/components/productDetails.jsx

@@ -0,0 +1,68 @@
+import { useParams, useOutletContext, Link } from "react-router-dom";
+import Button from "./button";
+import Products from "./products";
+
+import styles from "./productDetails.module.css";
+
+export default function ProductDetails() {
+  const [cart, setCart, items] = useOutletContext();
+
+  const { id } = useParams();
+
+  if (!items) return <HandleInvalidItem />;
+  const item = items.find((item) => item.id === id);
+
+  return (
+    <div className={styles.container}>
+      {item ? (
+        <div className={styles.card}>
+          <Link to="/store" className={styles.link}>
+            Back
+          </Link>
+          <Products item={item} cart={cart} setCart={setCart} />
+          <Button
+            onClick={() => {
+              cart[item.id]
+                ? removeFromCart(item, cart, setCart)
+                : addToCart(item, cart, setCart);
+            }}
+            text={cart[item.id] ? "Remove from Cart" : "Add to Cart"}
+          />
+          {Object.keys(cart).length > 0 ? (
+            <Link to="/bag" className={styles.link}>
+              View Cart
+            </Link>
+          ) : null}
+        </div>
+      ) : (
+        <HandleInvalidItem />
+      )}
+    </div>
+  );
+}
+
+function HandleInvalidItem() {
+  return (
+    <div className={styles.container}>
+      <div className={styles.card}>
+        <h1>Product Does Not Exist!</h1>
+        <Link to="/store">Return to Store</Link>
+      </div>
+    </div>
+  );
+}
+
+function addToCart(item, cart, setCart) {
+  let obj = { ...cart };
+  obj[item.id] = item;
+  obj[item.id].qty = 1;
+  setCart(obj);
+}
+
+function removeFromCart(item, cart, setCart) {
+  if (cart[item.id]) {
+    let obj = { ...cart };
+    delete obj[item.id];
+    setCart(obj);
+  }
+}

shopping-cart/src/components/productDetails.module.css

@@ -0,0 +1,29 @@
+.container {
+  display: flex;
+  gap: 2rem;
+  justify-content: center;
+  flex-wrap: wrap;
+  align-items: stretch;
+  text-align: center;
+}
+.card {
+  display: flex;
+  flex-direction: column;
+  max-width: calc(100% / 5);
+  justify-content: end;
+  /*flex: 1;*/
+  padding: 1.5rem;
+  margin: 1.5rem;
+  border-radius: 1rem;
+}
+
+.link {
+  text-decoration: none;
+  color: #0e374e;
+  font-weight: 600;
+  transition: font-weight 500ms;
+}
+
+.link:hover {
+  font-weight: 900;
+}

shopping-cart/src/components/products.jsx

@@ -0,0 +1,19 @@
+import PropTypes from "prop-types";
+
+import styles from "./products.module.css";
+
+import { currencyFormat } from "../utils/currency";
+
+export default function Products({ item }) {
+  return (
+    <>
+      <img src={item.image} alt={item.title} className={styles.img} />
+      <p>{item.title}</p>
+      <p>${currencyFormat(item.price)}</p>
+    </>
+  );
+}
+
+Products.propTypes = {
+  item: PropTypes.object,
+};

shopping-cart/src/components/products.module.css

@@ -0,0 +1,7 @@
+.img {
+  width: 100%;
+  max-height: 300px;
+  vertical-align: middle;
+  object-fit: contain;
+  float: left;
+}

shopping-cart/src/css/App.css

@@ -0,0 +1,5 @@
+#root {
+  margin: 0 auto;
+  padding: 0;
+  width: 100%;
+}

shopping-cart/src/css/cart.module.css

@@ -0,0 +1,97 @@
+.container {
+  display: flex;
+  justify-content: space-between;
+}
+
+.empty-cart {
+  width: 100%;
+  display: flex;
+  justify-content: center;
+  align-items: flex-start;
+  margin-top: 0.5rem;
+}
+
+.summary {
+  margin-right: 3rem;
+  padding: 1rem;
+  display: inline-block;
+  min-width: 250px;
+}
+
+.fullwidth {
+  width: 100%;
+}
+
+.card {
+  display: flex;
+  flex-direction: column;
+  margin: 0 2rem;
+  justify-content: center;
+  align-items: center;
+}
+
+.cartItems {
+  display: flex;
+  flex-direction: column;
+  gap: 2.5rem;
+  align-items: space-between;
+  justify-content: space-between;
+  align-content: flex-start;
+}
+
+.cartItem {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
+  justify-items: center;
+  padding: 2rem 0;
+  position: relative;
+}
+
+.cartItem::after {
+  content: "";
+  position: absolute;
+  border-bottom: solid black;
+  margin: auto;
+  left: 0;
+  bottom: 0;
+  right: 0;
+  height: 1px;
+  width: 50%;
+  border-bottom: 1px solid black;
+}
+
+.price-qty {
+  display: flex;
+  gap: 30px;
+  justify-content: center;
+}
+
+.price-qty p {
+  margin: 0;
+}
+
+.qtybtn {
+  display: flex;
+}
+
+.qtyp {
+  font-size: 1.3rem;
+  padding: 0.5rem;
+  margin: 0.5rem;
+}
+
+#img {
+  max-width: 100%;
+  max-height: 300px;
+  object-fit: contain;
+  border-radius: 2rem;
+  align-self: center;
+}
+
+.header {
+  margin: 1rem;
+}
+
+.input {
+  max-width: 30px;
+}

shopping-cart/src/css/index.css

@@ -0,0 +1,76 @@
+:root {
+  font-family: Inter, system-ui, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+  font-size: 18px;
+
+  /*color-scheme: light dark;*/
+  /*color: rgba(255, 255, 255, 0.87);*/
+  /*background-color: #242424;*/
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+body {
+  margin: 0;
+  display: flex;
+}
+
+/* Chrome, Safari, Edge, Opera */
+input::-webkit-outer-spin-button,
+input::-webkit-inner-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+/* Firefox */
+input[type="number"] {
+  -moz-appearance: textfield;
+}
+
+.roboto-condensed-fnt {
+  font-family: "Roboto Condensed", sans-serif;
+  font-optical-sizing: auto;
+  font-weight: 400;
+  font-style: normal;
+}
+
+/*h1 {*/
+/*  font-size: 3.2em;*/
+/*  line-height: 1.1;*/
+/*}*/
+/**/
+/*button {*/
+/*  border-radius: 8px;*/
+/*  border: 1px solid transparent;*/
+/*  padding: 0.6em 1.2em;*/
+/*  font-size: 1em;*/
+/*  font-weight: 500;*/
+/*  font-family: inherit;*/
+/*  background-color: #1a1a1a;*/
+/*  cursor: pointer;*/
+/*  transition: border-color 0.25s;*/
+/*}*/
+/*button:hover {*/
+/*  border-color: #646cff;*/
+/*}*/
+/*button:focus,*/
+/*button:focus-visible {*/
+/*  outline: 4px auto -webkit-focus-ring-color;*/
+/*}*/
+/**/
+/*@media (prefers-color-scheme: light) {*/
+/*  :root {*/
+/*    color: #213547;*/
+/*    background-color: #ffffff;*/
+/*  }*/
+/*  a:hover {*/
+/*    color: #747bff;*/
+/*  }*/
+/*  button {*/
+/*    background-color: #f9f9f9;*/
+/*  }*/
+/*}*/

shopping-cart/src/errorPage.jsx

@@ -0,0 +1,16 @@
+import { Link } from "react-router-dom";
+
+function ErrorPage() {
+  return (
+    <div>
+      <h1>Oh no, this route doesn&apos;t exist!</h1>
+      <p>
+        You can go back to the home page by clicking&nbsp;
+        <Link to="/">here</Link>
+        &nbsp;though!
+      </p>
+    </div>
+  );
+}
+
+export default ErrorPage;

shopping-cart/src/main.jsx

@@ -0,0 +1,13 @@
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+import "./css/index.css";
+import { createBrowserRouter, RouterProvider } from "react-router-dom";
+import routes from "./routes";
+
+const router = createBrowserRouter(routes);
+
+createRoot(document.getElementById("root")).render(
+  <StrictMode>
+    <RouterProvider router={router} />
+  </StrictMode>,
+);

shopping-cart/src/routes.jsx

@@ -0,0 +1,35 @@
+import App from "./App";
+import Cart from "./Cart";
+import Main from "./components/main";
+import ProductDetails from "./components/productDetails";
+import Store from "./Store";
+import ErrorPage from "./errorPage";
+
+const routes = [
+  {
+    path: "/",
+    element: <App />,
+    errorElement: <ErrorPage />,
+    children: [
+      {
+        path: "/",
+        element: <Main />,
+        index: true,
+      },
+      {
+        path: "store",
+        element: <Store />,
+      },
+      {
+        path: "store/:id",
+        element: <ProductDetails />,
+      },
+      {
+        path: "bag",
+        element: <Cart />,
+      },
+    ],
+  },
+];
+
+export default routes;

shopping-cart/src/utils/currency.js

@@ -0,0 +1,6 @@
+export function currencyFormat(str) {
+  return (str / 100)
+    .toFixed(2)
+    .toString()
+    .replace(/\B(?=(\d{3})+(?!\d))/g, ",");
+}